Overview of KAGRA: Calibration, detector characterization, physical environmental monitors, and the geophysics interferometer
Overview of KAGRA: Calibration, detector characterization, physical environmental monitors, and the geophysics interferometer
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DOI：
10.1093/ptep/ptab018
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发表时间：
2021-02-22
影响因子：
3.5
通讯作者：
Zhu, Z-H
中科院分区：
文献类型：
--
作者：
Akutsu, T.;Ando, M.;Zhu, Z-H
KAGRA是一个新建成的引力波天文台，是一个臂长3公里的激光干涉仪，位于日本岐阜的Kamioka。在本系列文章中，我们概述了KAGRA基线，我们在2019年完成了设计配置的安装。本文描述了用于从探测器输出重建引力波信号的校准方法（CAL），以及探测器（DET）的表征。本文还介绍了物理环境监测系统（PEM）和光物理干涉仪（GIF）。两者都用于表征和评估引力波通道的数据质量。它们在利用探测器输出进行引力波搜索方面发挥着重要作用。在不久的将来，一旦实现了引力波探测，以及在引力波天文学时代使用KAGRA，这些表征研究将变得更加重要。
KAGRA is a newly built gravitational wave observatory, a laser interferometer with a 3 km arm length, located at Kamioka, Gifu, Japan. In this series of articles we present an overview of the baseline KAGRA, for which we finished installing the designed configuration in 2019. This article describes the method of calibration (CAL) used for reconstructing gravitational wave signals from the detector outputs, as well as the characterization of the detector (DET). We also review the physical environmental monitoring (PEM) system and the geophysics interferometer (GIF). Both are used for characterizing and evaluating the data quality of the gravitational wave channel. They play important roles in utilizing the detector output for gravitational wave searches. These characterization investigations will be even more important in the near future, once gravitational wave detection has been achieved, and in using KAGRA in the gravitational wave astronomy era.